I still haven't resolved this issue but have made some progress.
As an admin we have 2 accounts, we have an everyday account which is a non admin account and is what we use to login to our own client machines and then we have a dedicated admin account which is used to login to servers an which has as close to domain admin account privelages.
Windows 7 is my client machine and some of you might be aware that there is a feature which allows you to run an application as a different user. when I click on the link as a standard user I get the message that the page cannot be displayed however if I am open a web browser in either IE or Chrome and then paste the link into the browser, I am able to see the backup log entry without issue.
After seeing this I then immediately thought this is a permissions issue on the server and went ahead to add my regular user as a local admin on the server, added the user into a local server group policy, attempted to turn of windows firewall completely and add exceptions but to no avail.
Any suggestions would be appreciated as its driving me nuts!